LP87522ERNFTQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LP87522ERNFTQ1 is an automotive-grade, four-phase buck converter featuring three high-current phases and one auxiliary phase. It integrates N-channel power switches for the main outputs and supports a wide input voltage range from 2.8 V to 5.5 V. The device delivers up to 9 A on the primary channels with adjustable output voltages between 600 mV and 3.36 V. Operating at a fixed 2 MHz switching frequency, it achieves low quiescent current of 1.4 µA. Qualified under AEC-Q100 Grade 1, it functions reliably within a temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for high reliability in vehicle environments
• Integrated high-side N-channel switches eliminate external component requirements for main phases
• Fixed 2 MHz switching frequency enables compact passive component selection and fast transient response
• Low quiescent current consumption supports efficient battery management in standby modes

Voltage Regulators - DC DC Switching Regulators Applications

• Central Electronic Control Units (ECUs) requiring multi-rail power distribution
• Infotainment systems needing stable voltage regulation for digital processors
• Instrument clusters demanding high-efficiency power conversion
• ADAS sensor interfaces requiring precise voltage rails

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number including suffixes such as ERNFTQ1 to ensure correct package type, tape-and-reel quantity, and automotive grade designation. Confirm that the specific revision matches the design requirements for thermal performance and electrical characteristics. Cross-reference the manufacturer's latest datasheet to validate pinout compatibility and recommended operating conditions before integration into production designs.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing automotive power architectures requiring high current density in a small footprint. The integrated switch topology reduces bill of materials compared to discrete solutions. Ensure the application benefits from the 2 MHz frequency for size reduction while accounting for potential electromagnetic interference considerations. Verify that the input voltage source remains within the specified 2.8 V to 5.5 V window for optimal regulation.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LP8752x-Q1 family of multi-phase buck converters designed specifically for automotive applications. The series offers scalable power solutions with varying phase configurations to meet diverse load requirements. The LP87522 variant specifically combines three high-power phases with a lower-power auxiliary channel, providing flexibility for complex system-on-chip power sequencing needs in modern vehicles.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Consult Texas Instruments documentation for direct pin-to-pin replacements or functional equivalents within the LP8752x-Q1 family. Verify that any substitute maintains AEC-Q100 Grade 1 qualification and identical thermal characteristics. Ensure that alternative components support the same 2.8 V to 5.5 V input range and provide sufficient current capacity for all required output rails.